本文实例讲述了PHP封装CURL扩展类。分享给大家供大家参考。具体如下:
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<?php
/**
* @description: 封装CURL扩展
* @date: 2014-07-28 16:04
*/
/**
* @编码规范
* @class 类名首字母大写,类名为多个单词, 每个大字首字母大写 eg: class Curl , class CurlPage
* @variable 变量名小写, 变量名为多个单词, 每个单词小写,使用下划线_分割 eg: $curl_result
* @function 函数名与类名规则相同 eg: function SendRequest
* @params 函数形参规则与变量名相同
* @class-variable 成员变量,以下划线结尾,多个单词使用下划线分隔. eg: private $host_name_
*/
/**
* @要求
*
*/
class Curl{
/**
* @请求的host
*/
private $host_ ;
/**
* @curl 句柄
*/
private $ch_ ;
/**
* @超时限制时间
*/
const time_=5;
/**
* @请求的设置
*/
private $options_ ;
/**
* @保存请求头信息
*/
private $request_header_ ;
/**
* @保存响应头信息
*/
private $response_header_ ;
/**
* @body_ 用于保存curl请求返回的结果
*/
private $body_ ;
/**
* @读取cookie
*/
private $cookie_file_ ;
/**
* @写入cookie
*/
private $cookie_jar_ ;
/**
* @todo proxy
* @构造函数,初始化CURL回话
*/
public function Start( $url ){
$this ->ch_ = curl_init( $url );
curl_setopt( $this ->ch_, CURLOPT_HEADER, 1);
curl_setopt( $this ->ch_, CURLOPT_RETURNTRANSFER , 1 );
}
/**
* @返回响应头
*/
public function ResponseHeader( $url ){
if (!function_exists( 'http_parse_headers' )) {
function http_parse_headers ( $raw_headers ){
$headers = array ();
foreach ( explode ( "\n" , $raw_headers ) as $i => $h ) {
$h = explode ( ':' , $h , 2);
if (isset( $h [1])) {
if (!isset( $headers [ $h [0]])) {
$headers [ $h [0]] = trim( $h [1]);
} else if ( is_array ( $headers [ $h [0]])) {
$tmp = array_merge ( $headers [ $h [0]], array (trim( $h [1])));
$headers [ $h [0]] = $tmp ;
} else {
$tmp = array_merge ( array ( $headers [ $h [0]]), array (trim( $h [1])));
$headers [ $h [0]] = $tmp ;
}
}
}
return $headers ;
}
}
$this ->Start( $url );
curl_setopt( $this ->ch_, CURLOPT_TIMEOUT, Curl::time_);
$this ->body_= $this ->Execx();
$header_size = curl_getinfo( $this ->ch_, CURLINFO_HEADER_SIZE);
$this ->response_header_ = substr ( $this ->body_, $start = 0, $offset = $header_size );
$this ->response_header_ = http_parse_headers( $this ->response_header_);
print_r( $this ->response_header_);
return $this ->Close( $this ->body_);
}
/**
* @读取cookie
*/
public function LoadCookie( $url , $cookie_file ){
$this ->Start( $url );
curl_setopt( $this ->ch_, CURLOPT_COOKIE, 1);
curl_setopt( $this ->ch_, CURLOPT_COOKIEFILE , $cookie_file );
$this ->body_= $this ->Execx();
return $this ->Close( $this ->body_);
}
/**
* @写入cookie
*/
public function SaveCookie( $url ){
$this ->Start( $url );
curl_setopt( $this ->ch_, CURLOPT_COOKIE, 1);
curl_setopt( $this ->ch_, CURLOPT_COOKIEFILE , 'cookie.txt' );
curl_setopt( $this ->ch_, CURLOPT_COOKIEJAR , 'cookie.txt' );
$this ->body_= $this ->Execx();
return $this ->Close( $this ->body_);
}
/**
* @设置HEADER
*/
public function SetHeader( $headers = null){
if ( is_array ( $headers ) && count ( $headers ) > 0) {
curl_setopt( $this ->ch_, CURLOPT_HTTPHEADER, $headers );
}
}
/**
* @GET请求
*/
public function Get( $url , array $params = array ()) {
if ( $params ) {
if ( strpos ( $url , '?' )) {
$url .= "&" .http_build_query( $params );
}
else {
$url .= "?" .http_build_query( $params );
}
}
$this ->Start( $url );
curl_setopt( $this ->ch_, CURLOPT_TIMEOUT, Curl::time_);
if ( strpos ( $url , 'https' ) === 0) {
curl_setopt( $this ->ch_, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt( $this ->ch_, CURLOPT_SSL_VERIFYPEER, 0);
}
$this ->body_= $this ->Execx();
return $this ->Close( $this ->body_);
}
/**
* @POST请求
*/
public function Post( $url , array $params = array ()) {
$this ->Start( $url );
curl_setopt( $this ->ch_, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt( $this ->ch_, CURLOPT_HTTPHEADER, array ( "Content-Type: application/x-www-form-urlencoded" ));
curl_setopt( $this ->ch_, CURLOPT_POST, true);
curl_setopt( $this ->ch_, CURLOPT_TIMEOUT, Curl::time_);
if ( $params ) {
curl_setopt( $this ->ch_, CURLOPT_POSTFIELDS, http_build_query( $params ));
}
$this ->body_= $this ->Execx();
return $this ->Close( $this ->body_);
}
/**
* @tips: google http head 方法
*/
public function Head( $url , array $params = array ()) {
$this ->Start( $url );
curl_setopt( $this ->ch_, CURLOPT_TIMEOUT, Curl::time_);
curl_setopt( $this ->ch_, CURLOPT_RETURNTRANSFER , 0);
curl_setOpt( $this ->ch_,CURLOPT_NOBODY, true);
$this ->body_= $this ->Execx();
return $this ->Close( $this ->body_);
}
/**
* @执行CURL会话
*/
public function Execx(){
return curl_exec( $this ->ch_);
}
/**
* @关闭CURL句柄
*/
public function Close( $body_ ){
if ( $body_ === false) {
echo "CURL Error: " . curl_error( $body_ );
return false;
}
curl_close( $this ->ch_);
return $body_ ;
}
}
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希望本文所述对大家的php程序设计有所帮助。